Process of making decorated glassware



March 13, 1928. 1,662,295

' M. L. BURGESS PROCESS OF MAKING DECORATED GLASSWARE' Filed March 8. 1926 PIE 1 IN VEN TOR. fink rnvlqfiux eats.

a BY S ATTORNEYS u the plate or bed mania t Patented Mar. 13, 1928.

UNITED STATES PATENT OFFICE. J

MARTIN L. nnaenss, or INnIANAroL'Is, NDIANA, AssIeNoa'ro MAnInr'rA me.

00., or INDIANAPOLIS, INDIANA, A CORPORATION.

PROCESS 01' MAKING DECORATED GLASSWABE.

Application fled Irma a, 1926. Serial No. 93,176.

This invention relates to the process of decorating glassware.

The chief object of the invention is to decorate glassware by providing an ornamental 6 pattern or outline, forming the same in the glassware while hot and varying the depth or tone of the color of the surface to con- .form' to thepattern or outline for bringing out the outline.

-25 of apparatus suitable for ornamenting glassware. Fig. 2 is an enlarged transverse sectional view taken on line 22 of Fig. 1

and in the direction of the arrows. Fig. 3

'1s atop plan view of a pie'ce of ornamented glassware, the shading being of the same color but indicating the variation in the de th or tone of color.

' n'the drawings indicates a suitable table or su rt for receiving a sheet of lass 11, w 1ch glass is substantially unior ply colored throu hout its mass. A roll 12 lspositloned so t at the sheet of glass 11 passes therebetween and secures a glass sheet of substantially uniform thickness.

or support 10 the sheet of'glass 11 asses so that when the sheet leaves the ro has a surface which is provided with an ornamental outline and the ornamental. outline is brought out by variations in the depth pr tone of color. v Reference will now be had to Fig. 2 for a detailed explanation of the supposed theo- 5 reticalbasisof the process and for a detailed description of the means employed in practicing the same." The bed plate or table 10 sufiports the glass sheet 11. The corrugated ro 13 is positioned in aced relation to The chief feature of the invention consistss to the variation in the depth- ,The full nature of the invention will be e sheet of glass passes therebeneath. The sheet of glass previously has been formed with a substantially uniform depth and the glass material itself- .is substantially uniformly colored throughglass sheet in the relative movement between the sheet and the roll subjects the portion 16- immediately opposite the height 14 of roll 13 to slightly greater pressure than the portion 17 which is seatable in the, depression 15 of the roll 13. That portion of the glass surface 17 which projects from the main body of the glass as determined by the depth of the depression 16 therein is relatively specifically exposed and is in greater surface contact with the roll than the depressed portion 16, and therefore, the heat in this specifically exposed portion of the lassware is conducted away morerapidly the roll from said glassware than from t e portion 16 immediately adjacent the main body of the glassware and. therefore portion 17 is cooled to a greater extent or faster than portion 16.- The materials employed are of such a character that although the glass ware is uniformly colored throughout its mass and although uniform color will always he obtained when subjected to a smooth roll subjection to a corrugated rollwill. while the glass is hot, form in the glassware the outline of the corrugated roll and vary the depth or toneof color corresponding to the corrugations, the deeper color beinguin that portion of the glassware correspon g y to that indicated at 16 and the lighter color. Another roll 13 is positioned adjacent thereto and between said roll 13 and-the table being obtained in that portion. correspondin to the elevations 17-. j %n Fig. 3 one sample pattern is conventionally illustrated, the different shadin indicating variation in tone or the dept of color and the full lines indicating the outline. The actual difference in depth or height between the elevation and depression in the glassware is barely perceptible to the touch, yet such difference in its formation is. suflicientto secure not only the desired outline but also the desired variation in the depth or tone of color.

Merely for a reasonable explanation and not in anyway by way ofrestriction is the foregoing theoretical explanation included. 3r

The invention generically consists of sub- The process of producinga two-tone color jecting substantially uniformly colored effect in glassware, which consists in sub- 10 glassware while hot to surface operation for jecting a plate of glass of uniform color cooling the glassware non-uniformly to sethroughout and while hot to a roll having a 5 cure a non-uniform and corresponding patpattern surface etched thereon.

tern therein and of varying depths 0r tones In witness whereof I have hereunto afiixed of color. 4 my signature.

The invention claimed is: MARTIN L. BURGESS. 

